Cheapest return flights from Boston to Copenhagen in September from 363€

AirHint found the following cheapest return flights from Boston (BOS) to Copenhagen (CPH) in September 2025 (see full year).

Return flights

01 Sep - 08 Sep Air Canada
06 Sep - 15 Sep Air Canada
11 Sep - 18 Sep Air Canada
01 Sep - 09 Sep Air France
01 Sep - 09 Sep Scandinavian Airlines direct
01 Sep - 08 Sep Scandinavian Airlines direct
30 Sep - 07 Oct Scandinavian Airlines direct
24 Sep - 01 Oct Icelandair
03 Sep - 10 Sep Icelandair
09 Sep - 16 Sep Icelandair
17 Sep - 24 Sep Icelandair
16 Sep - 02 Oct Air France
21 Sep - 28 Sep Icelandair
27 Sep - 04 Oct Scandinavian Airlines direct

Also check the deals for one-way flights from Boston to Copenhagen in September.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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